山东省东部地区农业生态地球化学调查与评价  

Survey and Evaluation of Agricultural Ecological Geochemistry in Eastern Shandong Province

作　　者：代杰瑞[1] 崔元俊[1] 庞绪贵[1] 刘华峰[1] 喻超[1] 赵西强[1] 

机构地区：[1]山东省地质调查院,山东济南250013

出　　处：《山东国土资源》2011年第5期1-7,共7页Shandong Land and Resources

基　　金：山东省国土资源大调查项目<山东省东部地区农业生态地球化学调查>(编号2006709)资助

摘　　要：介绍了山东省东部地区农业生态地球化学调查与评价工作取得的一些基本成果以及该区存在的生态地球化学问题。调查与评价结果显示,Zn,Pb,Cu,Se,Cd,S,P,Hg,N,OrgC等元素或指标在表生作用或人类活动等因素影响下,使表层土壤含量明显大于深层;总体上该区地球化学环境质量优良,Ⅲ类和劣Ⅲ类土壤仅占全区总面积的0.13%,主要分布在矿集区和城镇周边,主要污染元素为Cd,Cr,Ni,Hg。浅层地下水大部分元素或指标处于自然低背景含量状态,部分水样总硬度超标,溶解性总固体、NO2-和F-等超标,已不适合饮用。该区存在的生态地球化学问题有:①山地丘陵区土壤pH值低,且表层土壤具有向强酸、强碱两极化发展的趋势,易引起重金属元素活化,危害人类健康;②沿海地带土地贫瘠,N,P和有机质等营养水平多属缺乏级;③莱州-烟台和牟平-乳山矿集区以及人口密集的城镇地带表层土壤Hg,Cd,Pb,Zn,Se,S等元素污染严重。地质高背景、酸性的表生环境和工业污染的共同作用,是造成环境中重金属元素含量较高的主要原因。In this paper,basic achievements gained in agro-ecological geochemical survey and evaluation in eastern Shandong province and some geochemical problems have been introduced.As showed by survey and evaluation results,under the influence of hypergenesis and human activities,the contents of Zn,Pb,Cu,Se,Cd,S,P,Hg,N,OrgC,etc.are obviously larger than its in deep part.In the whole,the geochemical environment quality is good in this area,the Ⅲ type and bad than Ⅲ type soils only account for 0.13%.These areas mainly located around mining areas and cities.Cr,Ni,Cu and Cd are the key elements which have been polluted.Most elements or index of shallow ground water are under the natural background concentration,the concentration of Cd,Fe,NO-2 and the total hardness in parts of shallow groundwater samples are over the drinking water standards.This kind of shallow groundwater is not suitable for drinking.The existent ecological geochemical problems in this area are mainly： ① The pH values of soil are low in the hilly,and the surface soil have the trends developing into the strong acid and strong alkali,which will increase heavy metal element activation;② the soils of coastal area are barren,the nutrition level of N,P and Organic matters are usually in the lack level;③ the heavy metal pollution,such as Hg,Cd,Pb,Zn,Se,S,etc.,are serious in surface soil of Laizhou-Yantai and Muping-Rushan mining areas and densely populated townships.High geological background,the acidic surface environment and the industrial pollution are main reasons caused higher levels of heavy metals in environment.

关 键 词：农业生态地球化学 环境质量 重金属 调查评价 山东东部 

分 类 号：P593[天文地球—地球化学]